Archived post by matte

I had an RBD sim that I wanted to cache, only very small like 20 packed prims, but wanted it to play back realtime

but even though the bgeos were small, reading them off the network was slow.. .even reading them off a local disk was not realtime (and wouldn’t work on the farm)

so I made a stupid setup to ‘cache’ it in memory inside the hipfile

chopnet -> geometry chop in animated mode -> (lock the geometry chop) -> then channel sop to read it back to sops

was super fast, and didn’t make the hipfile too big cause it was a small sim

Archived post by Juraj

@TOADSTORM hi, I played today with roll correction, you were right, I used up vector to be (0,1,0), but after I got front (original), side (front x up) and then re-computed up, so that it is not always pointing upwards

it was easier, than I thought, but I needed to look at it with fresh eyes

“` string cam_path = chs(“cam_path”); matrix cam_m = optransform(cam_path); matrix3 cam_rot = qconvert( quaternion( (matrix3)cam_m ) ); matrix cam_trans = transpose(cam_rot) * cam_m;
matrix xform = ident();
vector back = normalize( {0,0,1} * cam_rot ); vector side = normalize( cross( {0,1,0}, back ) ); vector up = cross(back, side);
matrix3 fixed_rot = set(side, up, back);
xform *= fixed_rot; xform *= cam_trans;
v@P *= xform; “`

Archived post by Juraj

guys, do you have your favorite collection / library of papers, presentations about various vfx / cg topics? something you want to implement or understand at some point, but have not much time / skills right now, but you still keep it around
I had a similar situation and decided to create an online list of those things as many presentations are hard to track

github.com/jtomori/vfx_good_night_reading

feel free to contribute with your own things, there are already good and understandable resources on various topics which would be otherwise scattered at many locations
it is not a replicate of dl.acm.org and it doesn’t contain latest hardcore research on everything, mostly things which are well explained and possible to grasp the idea about

Archived post by Solitude

Pyro Cd Field Setup

@mestela

that gif is crunchy… meh

looks nicer in the vp

there might be a way with the gas calculate… but I used a really simple wrangle.

Attachments in this post:
http://fx-td.com/houdiniandchill/wp-content/uploads/discord/20185306/01/18/pyro_CdField.gif
http://fx-td.com/houdiniandchill/wp-content/uploads/discord/20185306/01/18/Pyro_Cd.hipnc
http://fx-td.com/houdiniandchill/wp-content/uploads/discord/20185306/01/18/pyro_cd.jpg